Zenith Data Systems Z-171 PC Series Service Manual page 43

Page 3-13
Operation
Calculator Keyboard Operation
Figure 3-10 illustrates the calculator keypad.
The computer includes a four-function, 16-digit calculator that may be
used while a program is running. The calculator is activated by pressing
the calculator icon key. Pressing the disk icon key will return the user
to the program.
The calculator keys are labeled in blue on the keyboard. The numbers
may also be activated by pressing the NUM LOCK key. However, the
calculator memory keys (M +, M—, MR, MC, CE, C) will not be activated.
Figure 3-10: Calculator Keypad